Commit graph

29 commits

Author SHA1 Message Date
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Andre Przywara
381996c5ed sunxi: gpio: add missing compatible strings
The sunxi GPIO driver is missing some compatible strings for recent
SoCs. While most of the sunxi GPIO code seems to not rely on this (and
so works anyway), the sunxi_name_to_gpio() function does and fails at
the moment (for instance when resolving the MMC CD pin name).
Add the compatible strings for the A64 and V3s, which were missing
from the list. This now covers all pinctrl nodes in our own DTs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-04-04 11:31:35 +05:30
Chris Blake
a6968ecb0a gpio: sunxi: Add compatible string for H5 PIO
Add allwinner,sun50i-h5-pinctrl compatible for H5 boards.

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
[jagan: remove external link and format commit message]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-01-26 20:02:33 +05:30
Simon Glass
3a57123e59 dm: gpio: Refactor to prepare for live tree support
Move the main part of the GPIO request function into a separate function
so that it can be used by the live tree function when added. Update the
xlate method to use a node reference.

Update all GPIO drivers to handle the modified xlate() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:10 -06:00
Simon Glass
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Chen-Yu Tsai
33559ffe5b gpio: sunxi: Add compatible string for R40 PIO
The PIO on the R40 SoC is mostly compatible with the A20.
Only a few pin functions for mmc2 were added to the PC
pingroup, to support 8 bit eMMCs.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:30:01 +02:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Chen-Yu Tsai
4694dc56e9 sunxi: gpio: Add .xlate function for gpio phandle resolution
sunxi uses a 2 cell phandle for gpio bindings. Also there are no
seperate nodes for each pin bank.

Add a custom .xlate function to map gpio phandles to the correct
pin bank device. This fixes gpio_request_by_name usage.

Fixes: 7aa9748584 ("dm: sunxi: Modify the GPIO driver to support driver
		      model")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-31 21:45:12 +02:00
Stephen Warren
6f82fac2f2 sunxi: gpio: convert bind() to use driver data
Now that the DM core sets driver_data before calling bind(), this driver
can make use of driver_data to determine the set of child devices to
create, rather than manually re-implementing the matching logic in code.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2016-05-26 20:48:31 -06:00
Hans de Goede
b813ef0252 sunxi: Add a bunch of missing compatible strings to sunxi_gpio.c
The kernel has different compatible strings for the pio block
because the pin-muxing is different on all the different SoCs,
but sunxi_gpio.c only support the basic gpio functionality, which
is identical everywhere. Add the missing compatible strings for
various SoC models.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2016-03-23 22:04:13 +01:00
Simon Glass
4e9838c102 dm: Use dev_get_addr() where possible
This is a convenient way for a driver to get the hardware address of a
device, when regmap or syscon are not being used. Change existing callers
to use it as an example to others.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2015-08-31 07:57:26 -06:00
Hans de Goede
fbf10ae986 sunxi: gpio: Add support for the gpio banks which are part of the R-io cluster
sun6i and later have a couple of io-blocks which are shared between the
main CPU core and the "R" cpu which is small embedded cpu which can be
active while the main system is suspended.

These gpio banks sit at a different mmio address then the normal banks,
and have a separate devicetree node and compatible, this adds support for
these banks to the sunxi-gpio code when built with device-model support.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-08-14 08:37:38 +02:00
Hans de Goede
a52783e11d sunxi: gpio: Add "allwinner,sun8i-a33-pinctrl"
Add "allwinner,sun8i-a33-pinctrl", this is used by the latest upstream
linux sunxi dts files.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-06-04 14:11:55 +02:00
Hans de Goede
421b32b880 sunxi: axp: Remove non driver-model support from the axp gpio code
Now that all sunxi boards are using driver-model for gpio (*), we can remove
the non driver-model support from the axp gpio code, and the glue to call
into the axp gpio code from the sunxi_gpio non driver-model code.

*) For the regular u-boot build, SPL still uses non driver-model gpio for
now, but the SPL never uses axp gpios support and we were already not building
axp-gpio support for the SPL.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:54 +02:00
Hans de Goede
f9b7a04bc8 sunxi: axp: Add driver-model support to the axp_gpio code
Add driver-model support to the axp_gpio code, note that this needs a small
tweak to the driver-model version of sunxi_name_to_gpio to deal with the
vbus detect and enable pins which are not standard numbered gpios.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:53 +02:00
Hans de Goede
2fcf033d36 sunxi: axp: Move axp gpio code to a separate axpi-gpio driver
Move the axp-gpio code out of the drivers/power/axp*.c code, and into
a new separate axpi-gpio driver.

This change drops supports for the gpio3 pin on the axp209, as that requires
special handling, and no boards are using it.

Besides cleaning things up by moving the code to a separate driver, as
a bonus this change also adds support for the (non vusb) gpio pins on the
axp221 and the gpio pins on the axp152.

The new axp-gpio driver gets its own Kconfig option, and is only enabled
on boards which need it. Besides that it only gets enabled in the regular
u-boot build and not for the SPL as we never need it in the SPL.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:53 +02:00
Hans de Goede
12ce15538a sunxi: axp: Change axp_gpio_foo prototypes to match gpio uclass ops
Change the axp_gpio_foo function prototypes to match the gpio uclass op
prototypes, this is a preparation patch for moving the axp gpio code to
a separate driver-model gpio driver.

Note that the ugly calls with a NULL udev pointer in drivers/gpio/sunxi_gpio.c
this adds are removed in a later patch.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:53 +02:00
Hans de Goede
746c087bd3 sunxi: gpio: Build sunxi_name_to_gpio_bank for driver-model code too
When doing a driver-model enabled build we still need sunxi_name_to_gpio_bank
(for now) for the mmc pinmux code in board/sunxi/board.c, so build it for
driver-model enabled builds too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:52 +02:00
Hans de Goede
11d52a9da6 sunxi: gpio: Add compatible strings for all supported SoCs
We want to use driver-model/fdt with other model SoCs too, so add
compatible strings for the other SoCs to the dm sunxi gpio code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-05-04 16:51:52 +02:00
Simon Glass
a5ab8838c6 sunxi: gpio: Add temporary implementation of name_to_gpio()
Until sunxi moves to device tree (e.g. for USB) we need to convert named
GPIOs to numbers. Add a function to do this.

This fixes the USB / EHCI support not working on the LinkSprite pcDuino3
(which uses devicemodel).

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-05-04 16:51:52 +02:00
Simon Glass
07ce60f3cd sunxi: gpio: Rename GPIOs to include a 'P' prefix
By convention, sunxi GPIOs are named PA1, PA2 instead of A1, A2. Change
the driver model GPIO driver for sunxi to use these names.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-05-04 16:51:52 +02:00
Simon Glass
e564f054af dm: core: Add dev_get_uclass_priv() to access uclass private data
Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:42 -06:00
Paul Kocialkowski
8deacca975 sunxi: Complete mmc pin mux for each supported platform, configured with Kconfig
Sunxi platforms have different possible mmc pin mux setups (except for mmc0),
which are different across platforms.

This lets users configure which is used through the CONFIG_MMC*_PINS Kconfig
options. This is especially relevant when a second (in addition to mmc0) port
is used and CONFIG_MMC_SUNXI_SLOT_EXTRA is enabled.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-04-15 16:17:17 +02:00
Paul Kocialkowski
f7c7ab636a power: axp221: Virtual VBUS detect and enable GPIOs to replace separate logic
This converts the VBUS detection and enable logic to GPIO instead of separate
axp functions and checks that have to be used aside usual GPIO functions.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-04-15 16:17:17 +02:00
Hans de Goede
6c727e09a0 sunxi: gpio: Add support for gpio pins on the AXP209 pmic
Some boards use GPIO-s on the pmic, one example of this is the A13-OLinuXino
board, which uses gpio0 of the axp209 for the lcd-power signal.

This commit adds support for gpio pins on the AXP209 pmic, the sunxi_gpio.c
changes are universal, adding gpio support for the other AXP pmics (when
necessary) should be a matter of adding the necessary axp_gpio_foo functions
to their resp. drivers, and add "#define AXP_GPIO" to their header file.

Note this commit only adds support for the non device-model version of the
gpio code, patches for adding support to the device-model version are very
welcome.

The string representation for these gpio-s is AXP0-#, the 0 in the AXP0 prefix
is there in case we need to support gpio-s on more then 1 pmic in the future.
At least A80 boards have 2 pmics, and we may end up needing to support gpio-s
on both.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-14 14:56:38 +01:00
Axel Lin
b0c4ae1a51 mmc: sunxi: Fix misuse of gpio_direction_input()
It does not make sense to make gpio_direction_input() return the gpio input
status. The return value of gpio_direction_input() is inconsistent if
CONFIG_DM_GPIO is defined.
And we don't need to call gpio_direction_input() int sunxi_mmc_getcd().
Just init the gpio once in mmc_resource_init() is enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-14 14:56:36 +01:00
Simon Glass
7aa9748584 dm: sunxi: Modify the GPIO driver to support driver model
This adds driver model support to the sunxi GPIO driver, using the device
tree to trigger binding of the driver. The driver will still operate
without driver model too.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2014-11-05 13:09:58 +01:00
Ian Campbell
abce2c6220 sunxi: add gpio driver
This patch enables CONFIG_CMD_GPIO for the Allwinner (sunxi) platform as well
as providing the common gpio API (gpio_request/free, direction in/out, get/set
etc).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ma Haijun <mahaijuns@gmail.com>
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Henrik Nordström <henrik@henriknordstrom.net>
Cc: Tom Cubie <Mr.hipboi@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2014-07-18 19:42:25 +01:00